Engine Control Module (ECM) X1

Fig 1: Engine Control Module (ECM) X1 Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire Color	Circuit No.	Function
1	0.5 BU/RD	2121	Ignition Control 1
2	0.5 BU/RD	2121	Ignition Control 1
3	0.5 YE/VT	5041	Intake Manifold Control 1
4	-	-	Not Used
5	0.5 BU/YE	231	Oil Pressure Switch Signal
6	0.5 BK	808	Low Reference
7	0.5 BU	5042	Intake Manifold Tuning Valve Sensor Signal
8	0.5 BU	486	Throttle Position Sensor Signal 2
9	0.5 BU	485	Throttle Position Sensor Signal 1
10	0.5 GY/BK	496	KS Signal
11	0.5 BK	808	Low Reference
12	0.5 BN/GN	472	Intake Air Temperature Sensor Signal
13-14	-	-	Not Used
15	0.5 BK/WH	474	5 Volt Reference 1
16	0.5 BN/YE	5041	Low Reference
17	0.5 BU/WH	2122	Ignition Control 2
18	0.5 BU/WH	2122	Ignition Control 2
19	0.5 BK/BN	1423	Heated Oxygen Sensor Heater Low Control Sensor 2
20	-	-	Not Used
21	0.5 BU	633	Camshaft Position Sensor Signal
22	0.5 BU	633	Camshaft Position Sensor Signal
23	0.5 BN/YE	1664	Heated Oxygen Sensor Low Signal Sensor 1
24	0.5 BN/YE	632	Low Reference
25	0.5 BN/YE	2761	Low Reference
26	0.5 BN/YE	632	Low Reference
27	0.5 GY/RD	1716	KS Signal
28	0.5 BK/VT	469	Low Reference
29	0.5 BN/YE	1669	Heated Oxygen Sensor Low Signal Sensor 2
30	-	-	Not Used
31	0.5 YE/BK	581	Throttle Actuator Control Open
32	0.5 BK/WH	581	Throttle Actuator Control Open
33	0.5 BU/GN	2123	Ignition Control 3
34	0.5 BU/GN	2123	Ignition Control 3
35	0.5 BU	573	Crankshaft Position Sensor Signal 1
36	0.5 BU/WH	1174	Oil Level Switch Signal
37-38	-	-	Not Used
39	0.5 BN/YE	574	Low Reference
40	0.5 BN/WH	2752	Low Reference
41	0.5 BK/WH	2701	5 Volt Reference 2
42	0.5 BK/WH	474	5 Volt Reference 1
43	0.5 BN/YE	650	Low Reference
44	0.5 BK	808	Low Reference
45	-	-	Not Used
46	0.5 BN/WH	428	EVAP Canister Purge Solenoid Control
47	0.5 BN/WH	582	Throttle Actuator Control Close
48	0.5 BN/WH	582	Throttle Actuator Control Close
49	0.5 BU/YE	2124	Ignition Control 4
50	0.5 BU/YE	2124	Ignition Control 4
51-52	-	-	Not Used
53	0.5 BU	1665	Heated Oxygen Sensor High Signal Sensor 1
54	0.5 BU	1668	Heated Oxygen Sensor High Signal Sensor 2
55	0.75 BN/YE	5284	CMP Actuator Solenoid Control Exhaust
56	0.75 BN/YE	5272	CMP Actuator Solenoid Control Intake
57	-	-	Not Used
58	0.75 BK/BN	676	Heated Oxygen Sensor Heater High Control Sensor 1
59	0.5 GN/WH	492	Mass Air Flow Sensor Signal
60	0.5 BU/RD	410	Engine Coolant Temperature Sensor Signal
61	0.5 BN/BK	1745	Fuel Injector Control 2
62	0.5 BN/VT	1746	Fuel Injector Control 3
63	0.5 BN/YE	844	Fuel Injector Control 4
64	0.5 BN/RD	1744	Fuel Injector Control 1

Connector Part Information

OEM: 15368916
Service: 88956567
Description: 64-Way F Sealed (BK)

Terminal Part Information

Terminal/Tray: See Terminal Repair Kit
Core/Insulation Crimp: See Terminal Repair Kit
Release Tool/Test Probe: See Terminal Repair Kit